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I applied via Referral and was interviewed in Jan 2023. There were 3 interview rounds.
General quetions regading to Instrumentation
Ladder logic is a programming language used in PLCs to create logic circuits using ladder diagrams.
Ladder logic is based on the electrical ladder diagrams used in relay-based control systems.
It uses symbols to represent input and output devices, as well as logic functions like AND, OR, and NOT.
Ladder logic programs are executed from top to bottom, left to right.
Example: If input A is ON and input B is OFF, turn output ...
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posted on 27 Nov 2024
posted on 30 Apr 2024
I applied via Campus Placement
Commonly used automation protocols include Modbus, Profibus, Ethernet/IP, and DeviceNet.
Modbus is a serial communication protocol commonly used in industrial automation.
Profibus is a fieldbus communication protocol used in process automation.
Ethernet/IP is a protocol used for industrial automation networking.
DeviceNet is a communication protocol used in factory automation for connecting industrial devices.
posted on 11 May 2024
RTD stands for Resistance Temperature Detector, which is a temperature sensor that operates on the principle that the electrical resistance of a metal changes with temperature.
RTD is commonly used in industrial applications for temperature measurement.
It provides accurate and stable temperature readings.
RTDs are made of pure metals like platinum, nickel, or copper.
The resistance of the RTD changes linearly with tempera...
posted on 11 May 2024
posted on 30 Apr 2024
I applied via Campus Placement
Commonly used automation protocols include Modbus, Profibus, Ethernet/IP, and DeviceNet.
Modbus is a serial communication protocol commonly used in industrial automation.
Profibus is a fieldbus communication protocol used in process automation.
Ethernet/IP is a protocol used for industrial automation networking.
DeviceNet is a communication protocol used in factory automation for connecting industrial devices.
posted on 5 Jul 2024
DCS is used for controlling processes in industries, while SCADA is used for monitoring and controlling processes in real-time.
DCS stands for Distributed Control System, used for controlling processes in industries.
SCADA stands for Supervisory Control and Data Acquisition, used for monitoring and controlling processes in real-time.
DCS is typically used in industries such as oil and gas, power plants, and manufacturing.
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Relays work on the principle of electromagnetic attraction and repulsion to control the flow of current in a circuit.
Relays have an electromagnet which attracts an armature to make or break electrical contacts.
When current flows through the coil of the relay, it creates a magnetic field that pulls the armature towards it, closing the contacts.
When the current stops, the magnetic field disappears, and the spring returns...
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